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  • API 5CT Oil casing
  • API 5CT Oil casing
  • API 5CT Oil casing
  • API 5CT Oil casing

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API 5CT Oil casing
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Phone : +86 15314159176
Email : lx@sdzyesteel.com
Wechat : +86 15314159176
Whatsapp : +86 15314159176
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Product Description
API 5CT Seamless Steel Tubing Grade J55/ K55, P110, H40,DN 9''5/8
API 5CT seamless steel tubing is used to stabilize the well, in order to make sure that the whole well can work smoothly, it is also known as a kind of American Petroleum Institute API Casing and Tubings with threaded connection. We also can design and produce casing and tubing of stainless steel material series for our clients for water well drilling.
API 5CT Seamless Steel tubing material: J55,K55,H40,L80, P110,Q125 etc.
API 5CT Seamless Steel tubing size: 2 3/8inch - 20inch
Connection type of API5CT OCTG tubing: EUE,NUE
Connection type of API5CT OCTG casing: STC,LTC,BTC,Plain ends

We also can manufacture other special connection types such as NPT,BSPT according to clients' requirement.

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 Chemical compositions of casing pipe


StandardGradeChemical compositions(%)
API SPEC 5CTJ55CSiMnPSCrNiCuMoV
K550.34~0.390.20~0.351.25~1.50≤0.020≤0.015≤0.15≤0.20≤0.20//
N800.34~0.380.20~0.351.45~1.70≤0.020≤0.015≤0.15///0.11~0.16
L800.15~0.22≤1.000.25~1.00≤0.020≤0.01012.0~14.0≤0.20≤0.20//
P1100.26~0.3950.17~0.370.40~0.70≤0.020≤0.0100.80~1.10≤0.20≤0.200.15~0.25≤0.08
Mechanical properties of casing pipe


GradeTypeTotal elongation under load (%)Yield strength (min)MpaYield strength (max)MpaTensile strength min MpaHardness Max (HRC)Hardness Max (HBW)
J55-0.5379552517--
K55-0.5379552655--
N8010.5552758689--
N80Q0.5552758689--
L8010.555265565523241
L809Cr0.555265565523241
L8013Cr0.555265565523241
C90-0.562172468925.4255
C95-0.5655758724--
T95-0.565575872425.4255
P110-0.6758965862--
Q125All0.658621034931--

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